Sea swims in August 2025
Find sea swims in August 2025 - filter by date or location, display on a map or use the advanced search to find your perfect race.
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- Fri 1 Aug
- FREE
- Fri 1 Aug
- FREE
Swim Marathon | 26 miles
Take on a challenge like no other as you swim a marathon distance over 12 weeks and lift your health, wellbeing and fitness to the next level.
- Enter online
- Fundraising required
- All ages
- 26 miles pool swimming

- Fri 1 Aug
- FREE
- Fri 1 Aug
- FREE
Swim Marathon | 13 miles
Take on a challenge like no other as you swim a half marathon distance over 12 weeks and lift your health, wellbeing and fitness to the next level.
- Enter online
- Fundraising required
- All ages
- 13 miles pool swimming

- Sat 30 Aug
- £40
- Sat 30 Aug
- £40
The Rock Hard Coast Sea Swim
A supported half-a-mile or one-mile sea swim, ideal for people new to sea swimming, from South Milton Sands, with a full safety team and part of the Something Wild Festival Weekend.
- Chip timing
- Enter online
- Age 13 & over
- 1.5 miles sea swimming

- Sun 31 Aug
- 1 charity
- Sun 31 Aug
- 1 charity
Brighton and Hove Triathlon | 1500M Swim
The swim-only event of the renowned Brighton and Hove Triathlon from the famous seafront promenade! Open water swimmers can soak up one of the biggest events in the triathlon calendar.
- Chip timing
- Enter online
- Age 15 & over
- 1500 m sea swimming